import router from './router'
import { ElMessage } from 'element-plus'
import NProgress from 'nprogress'
import 'nprogress/nprogress.css'
import { getToken } from '@/utils/auth'
import { isHttp, isPathMatch } from '@/utils/validate'
import { isRelogin } from '@/utils/request'
import useUserStore from '@/store/modules/user'
import useSettingsStore from '@/store/modules/settings'
import usePermissionStore from '@/store/modules/permission'

const getDefaultRoutePath = () => {
  return usePermissionStore().defaultRoutePath
}

NProgress.configure({ showSpinner: false })

const whiteList = ['/login', '/register']

const isWhiteList = path => {
  return whiteList.some(pattern => isPathMatch(pattern, path))
}

router.beforeEach((to, from, next) => {
  NProgress.start()
  if (getToken()) {
    to.meta.title && useSettingsStore().setTitle(to.meta.title)
    /* has token*/
    if (to.path === '/login') {
      next({ path: getDefaultRoutePath() })
      NProgress.done()
    } else if (isWhiteList(to.path)) {
      next()
    } else {
      if (useUserStore().roles.length === 0) {
        isRelogin.show = true
        // 判断当前用户是否已拉取完user_info信息
        useUserStore()
          .getInfo()
          .then(() => {
            isRelogin.show = false
            usePermissionStore()
              .generateRoutes()
              .then(accessRoutes => {
                // 根据roles权限生成可访问的路由表
                accessRoutes.forEach(route => {
                  if (!isHttp(route.path)) {
                    router.addRoute(route) // 动态添加可访问路由表
                  }
                })
                if ((to.redirectedFrom && to.redirectedFrom.fullPath === '/') || to.path === '/index') {
                  next({ path: getDefaultRoutePath(), replace: true })
                }
                next({ ...to, replace: true }) // hack方法 确保addRoutes已完成
              })
          })
          .catch(err => {
            useUserStore()
              .logOut()
              .then(() => {
                ElMessage.error(err)
                next({ path: getDefaultRoutePath() })
              })
          })
      } else {
        next()
      }
    }
  } else {
    // 没有token
    if (isWhiteList(to.path)) {
      // 在免登录白名单，直接进入
      next()
    } else {
      const redirect = to.redirectedFrom && to.redirectedFrom.fullPath === '/' ? getDefaultRoutePath() : to.fullPath
      next(redirect && redirect.indexOf('/index') === -1 ? `/login?redirect=${redirect}` : '/login') // 否则全部重定向到登录页
      NProgress.done()
    }
  }
})

router.afterEach(() => {
  NProgress.done()
})
